Ultrathin polyarylate polymer films and their preparation

Details Ultrathin polyarylate polymer films and their preparation Ultrathin polyarylate polymer films and their preparation

1988-01-29

1990-03-20

Lieberman, Allan M.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428220, 524464, 524466, C08J 518, C08K 502, C08K 503, C08L 3606

Patent

active

049100831

ABSTRACT:
Disclosed herein are free-standing, pinhole-free, ultrathin, polyarylate films having thicknesses of about 400 angstroms or less and a process to prepare them. The films find particular utility in separatory applications.

REFERENCES:
patent: 3892665 (1975-07-01), Steigelmann et al.
patent: 4155793 (1979-05-01), Salemme et al.
patent: 4279885 (1981-07-01), Ward

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